TPS2231PWP_集成电路资料查询网

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V
o(auxout)
V
o(rclken)
V
o(perst)
t − time − 1 ms/div
2 v/div
2 v/div
2 v/div
V
o(perst)
t − time − 500 ns/div
V
i(sysrst)
2 v/div
2 v/div
V
o(perst)
t − time − 100

s/div
V
i(sysrst)
2 v/div
2 v/div
V
o(3.3vout)
V
o(1.5vout)
V
o(auxout)
V
i(3.3vin)
R
l(3.3vout)
= 3.6

R
l(1.5vout)
= 2.7

R
l(auxout)
= 12

C
l(3.3v/1.5v/auxout)
= 68

F
t− time − 500

s/div
2 v/div
2 v/div
2 v/div
2 v/div
TPS2231
TPS2236
SLVS536B–JULY2004–REVISEDJANUARY2005
RCLKENANDPERSTVOLTAGEDURINGPOWERDOWNPERSTASSERTEDBYSYSRSTWHENPOWERISON
vsvs
TIMETIME
figure4.figure5.
perstde-assertedbysysrstwhenpowerisonoutputvoltagewhen3.3vinisremoved
vsvs
TIMETIME
figure6.figure7.
15

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www.德州仪器.com V o(auxout) V o(rclken) V o(perst) t − time − 1 ms/div 2 v/div 2 v/div 2 v/div V o(perst) t − time − 500 ns/div V i(sysrst) 2 v/div 2 v/div V o(perst) t − time − 100  s/div V i(sysrst) 2 v/div 2 v/div V o(3.3vout) V o(1.5vout) V o(auxout) V i(3.3vin) R l(3.3vout) = 3.6  R l(1.5vout) = 2.7  R l(auxout) = 12  C l(3.3v/1.5v/auxout) = 68  F t− time − 500  s/div 2 v/div 2 v/div 2 v/div 2 v/div TPS2231 TPS2236 SLVS536B–JULY2004–REVISEDJANUARY2005 RCLKENANDPERSTVOLTAGEDURINGPOWERDOWNPERSTASSERTEDBYSYSRSTWHENPOWERISON vsvs TIMETIME figure4.figure5. perstde-assertedbysysrstwhenpowerisonoutputvoltagewhen3.3vinisremoved vsvs TIMETIME figure6.figure7. 15

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